Nov 23 (Reuters) - U.S. stocks fell on Friday as oil prices slipped to their lowest in more than a year, dragging down energy shares, while investors were nervous ahead of U.S.-China trade talks at the G20 summit next week.

Volumes are likely to be thin in a shortened trading session on Friday, with the U.S. stock market closing at 1 p.m. ET (1800 GMT). The market was shut on Thursday for the Thanksgiving holiday.

Benchmark Brent crude fell more than 4 percent even as oil producers considered cutting production to stem a rising global surplus.

That pressured the S&P energy index, which fell 3.1 percent, the most among 11 major S&P sectors, which were either trading flat or in the red.

“The post-holiday abbreviated session is looking bleak as the futures point to a weak opening with crude prices tumbling in early pre-market trading,” said Peter Cardillo, chief market economist at Spartan Capital Securities in New York.

At 9:49 a.m. EDT, the Dow was down 96.31 points, or 0.39 percent, at 24,368.38, the S&P 500 was down 10.88 points, or 0.41 percent, at 2,639.05 and the Nasdaq Composite was down 0.10 points, or 0.00 percent, at 6,972.16.

The Nasdaq, which has lost 3.8 percent so far this week, is on pace for its biggest weekly decline since late March as worries about a cooling global economy and peaking corporate earnings have led investors to sell high-growth names, particularly in the technology sector.

Investors will be focusing on the G20 summit in Buenos Aires, where U.S. President Donald Trump and his Chinese counterpart Xi Jinping are expected to hold talks amid a worsening trade dispute between the two countries that has weighed on financial markets and sparked fears of a global slowdown.

The high-stakes meeting comes as the Trump administration shows little sign of backing down in its demands and rhetoric. Chinese Vice Commerce Minister Wang Shouwen said on Friday that trade talks should be equal and mutually beneficial.

Adding to worries, the Wall Street Journal reported that the U.S. government was trying to persuade wireless and internet providers in allied countries to avoid telecommunications equipment from China’s Huawei Technologies.

Retail stocks will be in focus as U.S. shoppers hit department stores for Black Friday deals, with a strong economy and rising wages driving a solid start to the holiday selling season.